Shade-holder for incandescent-lamp sockets



(N'moael.) .Y M. D. GREENGARD.v Y

SHADE HOLDER POR INGANDESGENT LAMP SOGKBTS.

No. 569,556. PatentedOct. 13, 1896.

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UNITED STATES PATENT OEEICE.

MORRIS D. GREENGARD, OF ST. LOUIS, MISSOURI.

SHADE-HOLDER FOR INCANDESCENT-LAMP SOCKETS.

SPECIFICATION forming part of Letters Patent No. 569,556, dated October13, 1896.

Application liled January 20, 1896. Serial No, 576,200. (No model.)

To all whom t may concer/t:

Be tknown that I, MORRIS D. GREENGAED, of St. Louis, in the State ofMissouri, have invented a new and useful Improvement in Shade-Holdersfor Incandescent-Light-Lamp Sockets, of which the following is aspeciiication.

This invention is an improvement in shadeholders for incandescent-lightshades, and has for an object, among others, to provide asimpleconstruction by which to secure the shade without the use of theordinary screws, which are objectionable for many reasons, and also toprovide improved means for supporting the shade holder proper from thelamp-socket.

The invention consists in the novel constructions, combinations, andarrangements of parts, as will be hereinafter described, and pointed outin the claims.

In the drawings, Figure l is a side view, part in section and partsbroken away, of my improvement as in use. Fig. 2 is a side view of theimproved holder. Fig. 3 is a bottom plan view thereof. Fig. a is adetail section on about line l a of Fig. 2. Fig. 5 is a detail sectionon about line 5 5 of Fig. 2. Fig. 6 is a detail view of the cam-ring.Figs. 7, 8, and 9 are respectively side, bottom plan, and perspectiveviews of a somewhat different construction from that shown in Figs. l,2, and 3; and Fig. lO is a detail section on about line lO l0, Fig. 8.

In securing the shade-holder to the lampsocket A, the latter beingprovided with a shoulder a at its lower end, I provide the ring oriiange B with upwardly-projected arms C, which are deflected inwardtoward their upper ends and are provided at such ends withoutwardly-bent portions O', forming seats for the cams D of the ring D,which encircles the lamp-socket A above the shoulder a. In the use ofthis construction the arms O may, when spread apart, be slipped over theshoulder A and into engagement with the cams D, when by turning the ringD the upper ends C of the arms will, by the cams D', be forced in overthe shoulder d, and so operate to retain the shade-holder upon thelamp-socket.

The ring or lange B is provided with the clasp E for securing the shade.These clasps are preferably made integral with the said ring and formedby providing the ring with transverse slits freeing the side edges ofthe clasp and with transverse slits connecting one end of thecircumferentially-extended slits, the slits thus operating to form boththe clasps and the openings through which such clasps operate. In theconstruction shown and as preferred the clasps are formed with shankportions E',which are extended approximately in the circumferentialdirection of the ring or flange B and are provided at their outer orfree ends with the tongues E2, which in the closed position of theclasps project into the ring in position to secure the shade. At theirfree ends the clasps are sprung outwardly in such manner as to normallyset the shadesecuring tongues out of the ring, one feature of myinvention being the provision, in connection with clasps which arespring-actuated to one position, of devices for setting such clasps tothe other position. In the construction shown in Fig. 1 the devices foractuating the clasps consist of separate slides F, one for each clasp,and formed with a handle portion f, a body portion f', which slidesabove the shank of the clasp, and flange portions f2, which projectalongside the shank into the ring and thence outwardly along the innerside of the ring, whereby they are held to said ring, as will be readilyunderstood.

To prevent the slides from accidental movement off the free ends of theclasps, I provide the ring adjacent to said free ends of the clasps withstop-shoulders f3 for abutment by the slide.

In operation it will be noticed that when the clasps are in openposition the shade-neck may be inserted within the ring and the slidesbe operated to quickly set the clasps into position to secure the shade.In such construction the clasps are independently operated, but it maybe desirable in some instances to operate the clasps jointly or alltogether. This may be effected by the construction shown in Figs. 7, 8,9, and 10, in which a ring Gis held to and partially rotatable upon the'shadering and is provided with openings g, through which the clasp mayspring outwardly when such clasps and openings are in register. Byturning the ring G from such position it may, by the pressure of thewalls G of its openings g against the Shanks of the clasps, cause theIOO said clasps to move inward to position to secure the shade. In thisconstruction the clasps are formed on the lower edge of the shade-ring Binstead of between the upper and lower edges of same, as in theconstruction shown in Fig. l.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

l. A shade-holder, comprising the ring or flange provided with claspsextended longitudinally in the direction of the circumference of thering, and slides for operating said clasps, such slides being movablealong both the ring and the clasps, whereby tooperate the latter,substantially as shown and described.

2. A shade holder, comprising a ring provided withcircumferentially-extended spring-clasps, and slides movableindependently of said ring and clasps, whereby they may move along bothring and clasp to operate the latter, substantially as shown anddescribed.

3. The shade-holder herein described, consisting of the cylindrical ringor ange having the circumferentially-extended clasps having their mainportions movable into and out of the line of the ring and provided attheir free ends with approximately radial portions, and the slides heldto and movable along the ring or flange and also movable along theclasps, whereby t'o operate the latter, substantially as shown anddescribed.

4:. In a shade-holder, the combination of the ring or flange having theclasps separated at their side edges from said ring or ange and theadjusting-slides having each a body p0rtion extending above the shank ofthe clasp, flan ge portions f2 which project alongside the said shankinto the ring and thence outwardly along the inner side of the ring,whereby they are held to the ring over the clasp and are movablelongitudinally along both such parts, substantially as shown anddescribed.

5. The combination with the lamp-socket having a shoulder of the holderhaving arms provided at their free end withl bearing portions and thering fitted on the socket above the shoulder and having cams engagingthe said bearing portions substantially as shown and described.

MORRIS D. GREENGARD. lVitnesses:

I-I. J. JOEL, RUDOLPH RIEHL.

